01/14/2025
Hydrogen sulfide is nothing to trifle with. Brass and copper turn black even at concentrations that are safe to breathe. Higher concentrations of over 50 ppm can irritate the eyes and lungs. The biggest danger is how it displaces oxygen because the gas is heavier than air. My industrial training contributed to the placing of this cave on the back burner because of safety concerns and other projects. Despite this I made plans to revisit the cave at a water level that allowed access to the system without having to remove gear in the hypoxic chamber, just beyond the mouth of the spring opening. I studied and consulted on human entry into enclosed spaces that contained H2S. I was prepared to analyze the atmosphere in the cave and make it safe for exploration. I affectionately named the project “the gas chamber”
In the video, Guy Bryant, Tracy Niesent and Lee Sams bring you the moment that humans entered the depths of this underwater frontier
https://www.facebook.com/share/12DtbnyxS2e/?mibextid=WC7FNe
This spring was found by Sean McCarthy of CaveDiveCamp.com and Tracy Niesent. It has no visible boil and is a sulfur, tannic river cave with an entrance belo...
